MESON Chess Problem Database
Problem Display
PID: 278217 (5r2/2P3r1/pR2p3/P1kppN2/7R/3n1bB1/B3N3/K4Q2 w - - 0 1)
Jordan, Gunter
Phenix, 2008
#2
10 + 9
SOLUTION
- SOUND
- Sets
- 1...Sc1
- 2.Qxc1#
- 1...Sf2
- 2.Qc1#
- 1...Sf4
- 2.Qc1#
- 1...e4
- 2.Bd6#
- 1...Sc1
- Tries
- 1.Sc1?
- threat
- 2.Sb3#
- 2.Sxd3#
- 1...Sxc1
- 2.Qxc1#
- 1...Rg4
- 2.Sxd3#
- 1...Bd1
- 2.Sxd3#
- 1...Be2
- 2.Sb3#
- 1...Bg4
- 2.Sxd3#
- 1...Se1
- 2.Sb3#
- 1...Sb2
- 2.Sb3#
- 1...Sf2
- 2.Sb3#
- 1...Sb4
- 2.Sb3#
- 1...Sf4
- 2.Sb3#
- 1...d4
- 2.Sxd3#
- 1...e4
- 2.Bd6#
- 1...Be4!
- threat
- 1.Sf4?
- threat
- 2.Sxd3#
- 2.Sxe6#
- 1...Sxf4
- 2.Qc1#
- 1...exf5
- 2.Sxd3#
- 2.Se6#
- 1...Rg6
- 2.Sxd3#
- 1...Re7
- 2.Sxd3#
- 1...Rf6
- 2.Sxd3#
- 1...Re8
- 2.Sxd3#
- 1...Be2
- 2.Sxe6#
- 1...Be4
- 2.Sxe6#
- 1...Sc1
- 2.Sxe6#
- 2.Qxc1#
- 1...Se1
- 2.Sxe6#
- 1...Sb2
- 2.Sxe6#
- 1...Sf2
- 2.Sxe6#
- 2.Qc1#
- 1...Sb4
- 2.Sxe6#
- 1...e4
- 2.Sxe6#
- 1...exf4!
- threat
- 1.Sfd4?
- threat
- 2.Sb3#
- 2.Sxe6#
- 1...exd4
- 2.Bd6#
- 1...Rg4
- 2.Sxe6#
- 1...Rg6
- 2.Sb3#
- 1...Re7
- 2.Sb3#
- 1...Rf4
- 2.Sxe6#
- 1...Rf6
- 2.Sb3#
- 1...Re8
- 2.Sb3#
- 1...Be4
- 2.Sxe6#
- 1...Sc1
- 2.Sxe6#
- 2.Qxc1#
- 1...Sf4
- 2.Qc1#
- 1...e4
- 2.Sxe6#
- 2.Bd6#
- 1...Bg4!
- threat
- 1.Sxg7?
- threat
- 2.Sxe6#
- 1...Rf6
- 2.c8Q#
- 2.c8R#
- 1...Bg4
- 2.Qxf8#
- 1...Sf4
- 2.Qc1#
- 1...Re8!
- threat
- 1.Bf2+?
- 1...Sxf2
- 2.Qc1#
- 1...d4!
- 1...Sxf2
- 1.Bxe5?
- threat
- 2.Bd4#
- 2.Bd6#
- 1...Rg4
- 2.Bd6#
- 1...Rd7
- 2.Bd4#
- 1...Rd8
- 2.Bd4#
- 1...d4
- 2.Bxd4#
- 2.Bd6#
- 1...Sxe5!
- threat
- 1.Qg1+?
- 1...Sf2
- 2.Qc1#
- 1...d4!
- 1...Sf2
- 1.c8Q+?
- 1...Rc7
- 2.Qxc7#
- 1...Rxc8!
- 1...Rc7
- 1.c8R+?
- 1...Rc7
- 2.Rxc7#
- 1...Rxc8!
- 1...Rc7
- 1.Sc1?
- Keys
- 1.Sed4!
- threat
- 2.Sb3#
- 2.Sxe6#
- 1...exd4
- 2.Bd6#
- 1...exf5
- 2.Sb3#
- 2.Se6#
- 1...Rg4
- 2.Sxe6#
- 1...Rg6
- 2.Sb3#
- 1...Re7
- 2.Sb3#
- 1...Rf6
- 2.Sb3#
- 1...Re8
- 2.Sb3#
- 1...Bd1
- 2.Sxe6#
- 1...Be4
- 2.Sxe6#
- 1...Bg4
- 2.Sxe6#
- 1...Sc1
- 2.Sxe6#
- 2.Qxc1#
- 1...Sf4
- 2.Sb3#
- 2.Qc1#
- 1...e4
- 2.Sxe6#
- 2.Bd6#
- threat
- 1.Sed4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 4
- Sets
- S(a);N_GUARD::QAR(B),XS(a)
- S(a);N_GUARD::QAR(B)
- P(e);OGATE::B(E)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- S(a);OGATE,XS(D)::QAR(B),XS(a)
- R(h);::S(D),XS(a)
- B(b);::S(D),XS(a)
- B(b);::S(D)
- S(a);::S(D)
- P(d);::S(D),XS(a)
- P(e);OGATE::B(E)
- Refutation
- B(b);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- S(a);N_GUARD,XS(D)::QAR(B)
- R(h);::S(D),XS(a)
- R(i);::S(D),XS(a)
- B(b);::S(D),XP(g)
- S(a);::S(D),XP(g)
- P(e);::S(D),XP(g)
- Refutation
- P(e);XS(D)
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- P(e);OGATE,XS(H)::B(E)
- R(h);::S(H),XP(g)
- R(h);::S(H)
- R(i);::S(H),XP(g)
- R(i);::S(H)
- B(b);::S(H),XP(g)
- S(a);N_GUARD::QAR(B)
- Refutation
- B(b);
- Try
- S(H);XR(h)
- Threat
- S(H),XP(g)
- Vars
- R(i);N_GUARD::P=Q
- B(b);OGATE::QAB(B),XR(i)
- S(a);N_GUARD::QAR(B)
- Refutation
- R(i);
- Try
- B(E);CHECK
- Vars
- S(a);XB(E)::QAR(B)
- Refutation
- P(d);P_SPINP(d)
- Try
- B(E);XP(e)
- Threat
- DUALS(2)
- Vars
- R(h);::B(E)
- R(i);::B(E)
- Refutation
- S(a);XB(E)
- Try
- Q(B);CHECK
- Vars
- S(a);N_GUARD,P_SPINS(a)::QAR(B)
- Refutation
- P(d);P_SPINP(d)
- Try
- P(J);CHECK
- Vars
- R(h);N_GUARD,P_SPINR(h)::QAR2(J),XR(h)
- Refutation
- R(i);XQ(J)
- Try
- P(J);CHECK
- Vars
- R(h);N_GUARD,P_SPINR(h)::R(J),XR(h)
- Refutation
- R(i);XR(J)
- Try
- Actual
- S(D);
- Threat
- DUALS(2)
- Vars
- P(e);OGATE,XS(D)::B(E)
- R(h);::S(D),XP(g)
- R(h);::S(D)
- R(i);::S(D)
- B(b);::S(D),XP(g)
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